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中国日报网 2023-04-17 17:56


> AI experiment shows ‘mind-reading’ capability

After waking up, you may feel frustrated you cannot recall the dreams you had last night. Artificial intelligence may be able to help.

Previously, there have been AI models that can turn text into images. They do this by learning from a large amount of data from both texts and images. This time, researchers from Osaka University in Japan have trained an AI system called Stable Diffusion to re-create images based on people's brain scans, Science magazine reported.

The researchers used an online data set provided by the University of Minnesota, which consisted of brain scans from four participants as they each viewed a set of 10,000 photos. The scans were recorded by functional magnetic resonance imaging.

The AI then learned about the brain activities by analyzing changes in blood flow shown by the fMRI data — when a part of the brain is activated, more blood will flow to it. It then matched the brain activity with the photos. 

Through this method, AI learned how human brains would react when seeing different photos.

Finally, the researchers tested the AI on additional brain scans from the same participants when they viewed photos of a toy bear, airplane, clock and train. 

If the person looked at an airplane, for example, the AI would use the brain scan data to create an image of a very blurry airplane. Then, it would turn on the previous "text-to-image" model and improve the quality of the image by feeding itself the keyword "airplane". 

The final images were "convincing" to about 80 percent accuracy, according to the researchers.

The new study created a novel approach that incorporates text and images to "decipher the brain", Ariel Goldstein from Princeton University said. 
美国普林斯顿大学的科学家Ariel Goldstein在接受《科学》杂志采访时表示,这项新研究创造了一种结合文本和图像来“破译”大脑的新方法。

In the future, scientists hope the technology can be used to record imagined thoughts and dreams or allow people to understand how differently other animals perceive reality.


A logo sign outside of a facility occupied by the Johnson & Johnson consumer division in Fort Washington, Pennsylvania on April 22, 2018. [Photo/IC]

> J&J agrees to pay $8.9b over cancer claims

Johnson & Johnson said on Tuesday it had agreed to pay $8.9 billion to tens of thousands of people who claimed the company’s talcum powder products caused cancer.

The proposed settlement would be paid out over 25 years through a subsidiary, which filed for bankruptcy to enable the $8.9 billion trust, Johnson & Johnson said in a court filing. 

If a bankruptcy court approves it, the agreement will resolve all current and future claims involving Johnson & Johnson products that contain talc, such as baby powder.

The first filing had set aside $2 billion for payouts to plaintiffs. With the new filing, Johnson & Johnson said it would set aside an additional $6.9 billion to cover the payouts.
LTL Management公司的第一次破产申请拨出了20亿美元用于支付原告。在新的申请中,强生公司表示将额外留出69亿美元用于支付这些费用。

J&J isn’t admitting any wrongdoing as part of the proposed settlement, a point company executives emphasized in a Tuesday statement that maintained the claims “are specious and lack scientific merit.”

The company is facing more than 40,000 lawsuits from former customers who say using its talc-based baby powder caused cancer, including some who allege the product contained cancer-causing asbestos. 

It announced plans to end sales of its talc-based baby powder globally in 2023.


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